The deep causes of formation of the regional ore-forming system and ore zoning of the Le-De metallogenic belt, Jiangxi, China

摘要

The Le-De metallogenic belt is an important metallogenic district of base and precious metals in South China. Mineralizationoccurred most intensively during the Mesozoic Era and was closely related to andesitic igneous rocks formed from a syntectic magma derived from the mantle and crust. It constitutes an integrated regional ore-forming system and displays the following regional ore zoning: Cu-Au(Mo) -> Au -> Cu -Pb-Zn-Au-Ag -> Pb-Zn-Ag-Au ->Ag-Au. A deep-seated structure may be responsible for the formation of the ore-forming system and the ore zoning in the Le-De metallogenic belt.